Hancock County, MS ZIP codes
There are 9 ZIP codes in Hancock County, MS, in 7 towns, from 39520 to 39576. The largest are 39520 (Bay Saint Louis), 39525 (Diamondhead) and 39556 (Kiln). 2 more cross into it from neighbouring counties: 39466 and 39573.
The county seat is Bay St. Louis.
- ZIP codes
- 9
- Partly in it
- 2 more
- Towns
- 7
- County seat
- Bay St. Louis
- County FIPS
28045- State
- Mississippi
- Population
- 46,167
- Median household income
- $67,708
- Land area
- 474 sq mi
- Area code
- 228
- Metro area
- Gulfport-Biloxi
Hancock County ZIP codes by town
- Bay St. Louis (county seat)
- 39520, 39521
Each ZIP code is listed under the county most of its land lies in and the town the Postal Service names it for; a ZIP code's own page shows exactly how it is split.
ZIP codes partly in Hancock County
These ZIP codes lie mostly in a neighbouring county but each cover a twentieth or more of Hancock County.
- 39466 Picayune · mostly in Pearl River County
- 39573 Perkinston · mostly in Stone County
Map of Hancock County ZIP codes
The ZIP codes of Hancock County, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.
Hancock County in numbers
About 46,167 people live in Hancock County, in 20,237 households, the 16th most populous of Mississippi's 82 counties. The median household income is $67,708 a year, 20% above the Mississippi median of $56,447 (US: $80,734). The median owner-occupied home is valued at $224,200 (32% above the Mississippi median), and median gross rent is $977 a month. The median age is 46.6; 26.8% of adults 25 and over hold a bachelor's degree or higher (25.1% across Mississippi); the average commute takes 33 minutes.
| Population | 46,167 |
|---|---|
| Households | 20,237 |
| Median age | 46.6 |
| Median household income | $67,708 |
| Median home value | $224,200 |
| Median gross rent | $977 |
| Bachelor's degree or higher | 26.8% |
| Mean commute | 32.5 min |
| Population density | 97 / sq mi |
U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates. Survey estimates carry margins of error, wider for small places. Sources and methods.
Largest towns in Hancock County
| Town | ZIP codes | Population |
|---|---|---|
| Bay St. Louis | 2 | 10,188 |
| Diamondhead | 1 | 9,338 |
| Waveland | 1 | 7,062 |
| Kiln | 1 | 2,016 |
| Pearlington | 1 | 1,278 |
Population of the census place of that name where there is one, otherwise of the ZIP codes the Postal Service addresses by it. A town's ZIP codes can reach past the county line.
Neighbouring counties
Counties that share a ZIP code with Hancock County.
Not sure you are in Hancock County? What county am I in? answers from your location, near a county line included.
Every ZIP code in Hancock County, with figures
| ZIP | City | Type | Population | Median income | Median home |
|---|---|---|---|---|---|
39520 | Bay Saint Louis , MS | Standard | 15,561 | $62,176 | $225,600 |
39521 | Bay Saint Louis , MS | No street area | — | — | — |
39522 | Stennis Space Center , MS | No street area | — | — | — |
39525 | Diamondhead , MS | Standard | 9,338 | $87,407 | $259,600 |
39529 | Stennis Space Center , MS | Standard | 0 | — | — |
39556 | Kiln , MS | Standard | 6,041 | $60,739 | $171,200 |
39558 | Lakeshore , MS | No street area | — | — | — |
39572 | Pearlington , MS | Standard | 1,321 | $44,786 | $98,300 |
39576 | Waveland , MS | Standard | 6,387 | $70,217 | $230,000 |
Cite this page
zipcodes.pro. “Hancock County ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/state/ms/county/hancock
Underlying data is public domain or openly licensed — sources, vintages and licences.